netdev - Re: [PATCH 2/3] net: phy: realtek: Enable accessing RTL8211E extension pages

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Message-ID: <35db1bff-f48e-5372-06b7-3140cb7cbb71@gmail.com>
Date:   Mon, 1 Jul 2019 22:37:16 +0200
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Andrew Lunn <andrew@...n.ch>, Matthias Kaehlcke <mka@...omium.org>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Florian Fainelli <f.fainelli@...il.com>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Douglas Anderson <dianders@...omium.org>
Subject: Re: [PATCH 2/3] net: phy: realtek: Enable accessing RTL8211E
 extension pages

On 01.07.2019 22:02, Andrew Lunn wrote:
> On Mon, Jul 01, 2019 at 12:52:24PM -0700, Matthias Kaehlcke wrote:
>> The RTL8211E has extension pages, which can be accessed after
>> selecting a page through a custom method. Add a function to
>> modify bits in a register of an extension page and a few
>> helpers for dealing with ext pages.
>>
>> rtl8211e_modify_ext_paged() and rtl821e_restore_page() are
>> inspired by their counterparts phy_modify_paged() and
>> phy_restore_page().
> 
> Hi Matthias
> 
> While an extended page is selected, what happens to the normal
> registers in the range 0-0x1c? Are they still accessible?
> 
AFAIK: no

> 	  Andrew
> 
Heiner